NGC 3729

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NGC 3729
NGC3729-hst-R658GB814.jpg
NGC 3729 by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 11h 33m 49.3s [1]
Declination 53° 07′ 32″ [1]
Redshift 1,060 ± 1 km/s [1]
Distance 65.7 ± 4.8 Mly (20.2 ± 1.5 Mpc) [1]
Apparent magnitude  (V)11.0 [2]
Characteristics
Type SB(r)a pec [1]
Apparent size  (V)2.8′ × 1.8′ [1]
Other designations
UGC 6547, CGCG 268-051, MCG +09-19-117, PGC 35711 [1]

NGC 3729 is a barred spiral galaxy located in the constellation Ursa Major. It is located at a distance of circa 65 million light years from Earth, which, given its apparent dimensions, means that NGC 3729 is about 60,000 light years across. It was discovered by William Herschel on April 12, 1789. [3]

NGC 3729 has a bright nucleus embedded in a bar which measures 0.5 x 0.1 arcminutes. At the end of the bar lies a ring with knots. The outer part of the galaxy is formed by an asymmetric faint nebulosity with condensations. [4] It is possible that the condensation is a disturbed satellite galaxy. [5] In the centre of NGC 3729 is predicted to lie an intermediate-mass black hole, whose mass is estimated to be between 4 and 400 thousands M☉ (104.6 ± 1.0M☉) based on Ks-band bulge luminosity. [6] The galaxy has an inner ring which emits in far ultraviolet and H-alpha, which are considered to be markers of recent star formation activity. [7]

NGC 3729 is member of the M109 Group [8] which is part of the south Ursa Major groups, part of the Virgo Supercluster. [9] It forms a pair with NGC 3718, which lies 11.5 arcminutes to the west. [4] It is possible the two galaxies interacted in the past. [10]

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<span class="mw-page-title-main">NGC 4026</span> Galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 3726</span> Galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 3893</span> Galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 3665</span> Galaxy in the constellation Ursa Major

NGC 3665 is a lenticular galaxy located in the constellation Ursa Major. It is located at a distance of circa 85 million light-years from Earth, which, given its apparent dimensions, means that NGC 3665 is about 85,000 light years across. It was discovered by William Herschel on March 23, 1789.

<span class="mw-page-title-main">NGC 5363</span> Galaxy in the constellation Virgo

NGC 5363 is a lenticular galaxy located in the constellation Virgo. It is located at a distance of circa 65 million light years from Earth, which, given its apparent dimensions, means that NGC 5363 is about 100,000 light years across. It was discovered by William Herschel on January 19, 1784. It is a member of the NGC 5364 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.

<span class="mw-page-title-main">NGC 765</span> Galaxy in the constellation Aries

NGC 765 is an intermediate spiral galaxy located in the constellation Aries. It is located at a distance of circa 220 million light years from Earth, which, given its apparent dimensions, means that NGC 765 is about 195,000 light years across. It was discovered by Albert Marth on October 8, 1864. The galaxy has an extensive hydrogen (HI) disk with low surface brightness, whose diameter is estimated to be 240 kpc.

<span class="mw-page-title-main">NGC 2273</span> Galaxy in the constellation Lynx

NGC 2273 is a barred spiral galaxy located in the constellation Lynx. It is located at a distance of circa 95 million light years from Earth, which, given its apparent dimensions, means that NGC 2273 is about 100,000 light years across. It was discovered by Nils Dunér on September 15, 1867.

<span class="mw-page-title-main">NGC 3998</span> Galaxy in the constellation of Ursa Major

NGC 3998 is a lenticular galaxy located in the constellation Ursa Major. It was discovered on April 14, 1789, by the astronomer William Herschel. At a distance of 45 million light-years, it is located relatively nearby, making it a well-studied object.

<span class="mw-page-title-main">NGC 4253</span> Galaxy in the constellation of Coma Berenices

NGC 4253 is a barred spiral galaxy located in the constellation Coma Berenices. It is located at a distance of about 185 million light years from Earth, which, given its apparent dimensions, means that NGC 4253 is about 65,000 light years across. It was discovered by William Herschel on February 3, 1788. It is a Seyfert galaxy.

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 3729. Retrieved 2019-01-18.
  2. ↑ "Revised NGC Data for NGC 3729". spider.seds.org. Retrieved 25 November 2018.
  3. ↑ NGC 3729 cseligman.com
  4. 1 2 de Vaucouleurs, Gerard Henri; de Vaucouleurs, Antoinette; Shapley, Harlow (1964). Reference catalogue of bright galaxies. Austin: University of Texas Press. Bibcode:1964rcbg.book.....D.
  5. ↑ Morales, Gustavo; Martínez-Delgado, David; Grebel, Eva K.; Cooper, Andrew P.; Javanmardi, Behnam; Miskolczi, Arpad (29 June 2018). "Systematic search for tidal features around nearby galaxies". Astronomy & Astrophysics. 614: A143. arXiv: 1804.03330 . doi:10.1051/0004-6361/201732271. S2CID   118981195.
  6. ↑ Graham, Alister W.; Scott, Nicholas (1 February 2013). "The MBH-lspheroid relation at high and low masses, the quadratic growth of black holes, and intermediate-mass black hole candidates". The Astrophysical Journal. 764 (2): 151. arXiv: 1211.3199 . Bibcode:2013ApJ...764..151G. doi:10.1088/0004-637X/764/2/151. S2CID   96428441.
  7. ↑ Comerón, S. (9 July 2013). "Inner rings in disc galaxies: dead or alive". Astronomy & Astrophysics. 555: L4. arXiv: 1306.4515 . Bibcode:2013A&A...555L...4C. doi:10.1051/0004-6361/201321983. S2CID   56144824.
  8. ↑ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv: 1011.6277 . Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID   119194025. Archived from the original on 31 January 2016. Retrieved 19 February 2019.
  9. ↑ "The Ursa Major Groups". www.atlasoftheuniverse.com.
  10. ↑ Markakis, K.; Dierkes, J.; Eckart, A.; Nishiyama, S.; Britzen, S.; García-Marín, M.; Horrobin, M.; Muxlow, T.; Zensus, J. A. (20 July 2015). "Subaru and e-Merlin observations of NGC 3718". Astronomy & Astrophysics. 580: A11. arXiv: 1504.03691 . doi:10.1051/0004-6361/201425077. S2CID   56022608.
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